ZD-01983 Rev. 2.1, 25-Jun-10

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Page 11 of 12

YV12T25 DC-DC Converter

10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A

Data Sheet

Fig. 21: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance 1 μF

ceramic and Vin = 12 V for Vout = 3.3 V.

Time Scale: 1 μs/div.

Fig. 23: Output voltage response for Vout = 3.3 V to positive load

current step change from 12.5 A to 25 A with slew rate of 5 A/μs at

Vin = 12 V. Top Trace: Output Voltage (100 mV/div.); Bottom Trace:

Load Current (10 A/div.) Co =1 μF ceramic. Time Scale: 10 μs/div.

Fig. 22: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

1 μF ceramic and Vin = 12 V for Vout = 1.2 V.

Time Scale: 1 μs/div.

Fig. 24: Output voltage response for Vout = 3.3 V to negative load

current step change from 25 A to 12.5 A with slew rate of -5 A/μs at

Vin = 12 V. Top Trace: Output Voltage (100 mV/div.); Bottom Trace:

Load Current (10 A/div.) Co = 1 μF ceramic. Time Scale: 10 μs/div.